Set up pick many so learner can pick one answer and move on.

I  am creating a quiz where the learner must pick two answers to be correct.  If the learner thinks only one answer is correct, clicking the  submit button tells the learner there are more answers to be selected.  How can I set this up so if the learner just picks one answer, the quiz moves on to the next question?  I know I could set a trigger so if that if the one wrong answer is chosen, the next question is shown, but I want them to use the submit button to advance the course even if the learner has not picked all the answers.

Thanks for any help on this,


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